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c-common.h (117406) c-common.h (132729)
1/* Definitions for c-common.c.
2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
1/* Definitions for c-common.c.
2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
3 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11

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19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
21
22#ifndef GCC_C_COMMON_H
23#define GCC_C_COMMON_H
24
25#include "splay-tree.h"
26#include "cpplib.h"
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11

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19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
21
22#ifndef GCC_C_COMMON_H
23#define GCC_C_COMMON_H
24
25#include "splay-tree.h"
26#include "cpplib.h"
27#include "ggc.h"
27
28/* Usage of TREE_LANG_FLAG_?:
29 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
30 TREE_NEGATED_INT (in INTEGER_CST).
31 IDENTIFIER_MARKED (used by search routines).
32 SCOPE_BEGIN_P (in SCOPE_STMT)
33 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
34 NEW_FOR_SCOPE_P (in FOR_STMT)
35 ASM_INPUT_P (in ASM_STMT)
36 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
37 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
38 STMT_IS_FULL_EXPR_P (in _STMT)
39 2: STMT_LINENO_FOR_FN_P (in _STMT)
40 3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
41 COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
28
29/* Usage of TREE_LANG_FLAG_?:
30 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
31 TREE_NEGATED_INT (in INTEGER_CST).
32 IDENTIFIER_MARKED (used by search routines).
33 SCOPE_BEGIN_P (in SCOPE_STMT)
34 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
35 NEW_FOR_SCOPE_P (in FOR_STMT)
36 ASM_INPUT_P (in ASM_STMT)
37 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
38 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
39 STMT_IS_FULL_EXPR_P (in _STMT)
40 2: STMT_LINENO_FOR_FN_P (in _STMT)
41 3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
42 COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
43 STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR)
42 4: SCOPE_PARTIAL_P (in SCOPE_STMT)
43*/
44
45/* Reserved identifiers. This is the union of all the keywords for C,
46 C++, and Objective-C. All the type modifiers have to be in one
47 block at the beginning, because they are used as mask bits. There
48 are 27 type modifiers; if we add many more we will have to redesign
49 the mask mechanism. */
50
51enum rid
52{
53 /* Modifiers: */
54 /* C, in empirical order of frequency. */
55 RID_STATIC = 0,
56 RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN,
57 RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE,
58 RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
59
60 /* C extensions */
44 4: SCOPE_PARTIAL_P (in SCOPE_STMT)
45*/
46
47/* Reserved identifiers. This is the union of all the keywords for C,
48 C++, and Objective-C. All the type modifiers have to be in one
49 block at the beginning, because they are used as mask bits. There
50 are 27 type modifiers; if we add many more we will have to redesign
51 the mask mechanism. */
52
53enum rid
54{
55 /* Modifiers: */
56 /* C, in empirical order of frequency. */
57 RID_STATIC = 0,
58 RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN,
59 RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE,
60 RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
61
62 /* C extensions */
61 RID_BOUNDED, RID_UNBOUNDED, RID_COMPLEX, RID_THREAD,
63 RID_COMPLEX, RID_THREAD,
62
63 /* C++ */
64 RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
65
66 /* ObjC */
67 RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY,
68
69 /* C */

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81 /* Too many ways of getting the name of a function as a string */
82 RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
83
84 /* C++ */
85 RID_BOOL, RID_WCHAR, RID_CLASS,
86 RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
87 RID_TEMPLATE, RID_NULL, RID_CATCH,
88 RID_DELETE, RID_FALSE, RID_NAMESPACE,
64
65 /* C++ */
66 RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
67
68 /* ObjC */
69 RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY,
70
71 /* C */

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83 /* Too many ways of getting the name of a function as a string */
84 RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
85
86 /* C++ */
87 RID_BOOL, RID_WCHAR, RID_CLASS,
88 RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
89 RID_TEMPLATE, RID_NULL, RID_CATCH,
90 RID_DELETE, RID_FALSE, RID_NAMESPACE,
89 RID_NEW, RID_OPERATOR, RID_THIS,
90 RID_THROW, RID_TRUE, RID_TRY,
91 RID_TYPENAME, RID_TYPEID, RID_USING,
91 RID_NEW, RID_OFFSETOF, RID_OPERATOR,
92 RID_THIS, RID_THROW, RID_TRUE,
93 RID_TRY, RID_TYPENAME, RID_TYPEID,
94 RID_USING,
92
93 /* casts */
94 RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
95
96 /* Objective-C */
97 RID_ID, RID_AT_ENCODE, RID_AT_END,
98 RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
99 RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
95
96 /* casts */
97 RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
98
99 /* Objective-C */
100 RID_ID, RID_AT_ENCODE, RID_AT_END,
101 RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
102 RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
100 RID_AT_PROTOCOL, RID_AT_SELECTOR, RID_AT_INTERFACE,
103 RID_AT_PROTOCOL, RID_AT_SELECTOR,
104 RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
105 RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
106 RID_AT_INTERFACE,
101 RID_AT_IMPLEMENTATION,
102
103 RID_MAX,
104
105 RID_FIRST_MODIFIER = RID_STATIC,
106 RID_LAST_MODIFIER = RID_ONEWAY,
107
108 RID_FIRST_AT = RID_AT_ENCODE,

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116 (unsigned int)(rid) <= (unsigned int)RID_LAST_AT)
117
118#define OBJC_IS_PQ_KEYWORD(rid) \
119 ((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \
120 (unsigned int)(rid) <= (unsigned int)RID_LAST_PQ)
121
122/* The elements of `ridpointers' are identifier nodes for the reserved
123 type names and storage classes. It is indexed by a RID_... value. */
107 RID_AT_IMPLEMENTATION,
108
109 RID_MAX,
110
111 RID_FIRST_MODIFIER = RID_STATIC,
112 RID_LAST_MODIFIER = RID_ONEWAY,
113
114 RID_FIRST_AT = RID_AT_ENCODE,

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122 (unsigned int)(rid) <= (unsigned int)RID_LAST_AT)
123
124#define OBJC_IS_PQ_KEYWORD(rid) \
125 ((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \
126 (unsigned int)(rid) <= (unsigned int)RID_LAST_PQ)
127
128/* The elements of `ridpointers' are identifier nodes for the reserved
129 type names and storage classes. It is indexed by a RID_... value. */
124extern tree *ridpointers;
130extern GTY ((length ("(int)RID_MAX"))) tree *ridpointers;
125
126/* Standard named or nameless data types of the C compiler. */
127
128enum c_tree_index
129{
130 CTI_WCHAR_TYPE,
131 CTI_SIGNED_WCHAR_TYPE,
132 CTI_UNSIGNED_WCHAR_TYPE,

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140
141 CTI_CHAR_ARRAY_TYPE,
142 CTI_WCHAR_ARRAY_TYPE,
143 CTI_INT_ARRAY_TYPE,
144 CTI_STRING_TYPE,
145 CTI_CONST_STRING_TYPE,
146
147 /* Type for boolean expressions (bool in C++, int in C). */
131
132/* Standard named or nameless data types of the C compiler. */
133
134enum c_tree_index
135{
136 CTI_WCHAR_TYPE,
137 CTI_SIGNED_WCHAR_TYPE,
138 CTI_UNSIGNED_WCHAR_TYPE,

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146
147 CTI_CHAR_ARRAY_TYPE,
148 CTI_WCHAR_ARRAY_TYPE,
149 CTI_INT_ARRAY_TYPE,
150 CTI_STRING_TYPE,
151 CTI_CONST_STRING_TYPE,
152
153 /* Type for boolean expressions (bool in C++, int in C). */
148 CTI_BOOLEAN_TYPE,
149 CTI_BOOLEAN_TRUE,
150 CTI_BOOLEAN_FALSE,
151 /* C99's _Bool type. */
152 CTI_C_BOOL_TYPE,
153 CTI_C_BOOL_TRUE,
154 CTI_C_BOOL_FALSE,
154 CTI_TRUTHVALUE_TYPE,
155 CTI_TRUTHVALUE_TRUE,
156 CTI_TRUTHVALUE_FALSE,
157
155 CTI_DEFAULT_FUNCTION_TYPE,
156
157 CTI_G77_INTEGER_TYPE,
158 CTI_G77_UINTEGER_TYPE,
159 CTI_G77_LONGINT_TYPE,
160 CTI_G77_ULONGINT_TYPE,
161
162 /* These are not types, but we have to look them up all the time. */

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172
173#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code)
174
175/* Identifier part common to the C front ends. Inherits from
176 tree_identifier, despite appearances. */
177struct c_common_identifier GTY(())
178{
179 struct tree_common common;
158 CTI_DEFAULT_FUNCTION_TYPE,
159
160 CTI_G77_INTEGER_TYPE,
161 CTI_G77_UINTEGER_TYPE,
162 CTI_G77_LONGINT_TYPE,
163 CTI_G77_ULONGINT_TYPE,
164
165 /* These are not types, but we have to look them up all the time. */

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175
176#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code)
177
178/* Identifier part common to the C front ends. Inherits from
179 tree_identifier, despite appearances. */
180struct c_common_identifier GTY(())
181{
182 struct tree_common common;
180 struct cpp_hashnode GTY ((skip (""))) node;
183 struct cpp_hashnode node;
181};
182
183#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
184#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
185#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
186#define wint_type_node c_global_trees[CTI_WINT_TYPE]
187#define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE]
188#define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE]
189#define intmax_type_node c_global_trees[CTI_INTMAX_TYPE]
190#define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE]
191#define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
192#define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
193
184};
185
186#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
187#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
188#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
189#define wint_type_node c_global_trees[CTI_WINT_TYPE]
190#define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE]
191#define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE]
192#define intmax_type_node c_global_trees[CTI_INTMAX_TYPE]
193#define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE]
194#define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
195#define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
196
194#define boolean_type_node c_global_trees[CTI_BOOLEAN_TYPE]
195#define boolean_true_node c_global_trees[CTI_BOOLEAN_TRUE]
196#define boolean_false_node c_global_trees[CTI_BOOLEAN_FALSE]
197#define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE]
198#define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE]
199#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
197
200
198#define c_bool_type_node c_global_trees[CTI_C_BOOL_TYPE]
199#define c_bool_true_node c_global_trees[CTI_C_BOOL_TRUE]
200#define c_bool_false_node c_global_trees[CTI_C_BOOL_FALSE]
201
202#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
203#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
204#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
205#define string_type_node c_global_trees[CTI_STRING_TYPE]
206#define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
207
208#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
209

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218#define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
219#define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS]
220
221/* A node for `((void) 0)'. */
222#define void_zero_node c_global_trees[CTI_VOID_ZERO]
223
224extern GTY(()) tree c_global_trees[CTI_MAX];
225
201#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
202#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
203#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
204#define string_type_node c_global_trees[CTI_STRING_TYPE]
205#define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
206
207#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
208

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217#define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
218#define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS]
219
220/* A node for `((void) 0)'. */
221#define void_zero_node c_global_trees[CTI_VOID_ZERO]
222
223extern GTY(()) tree c_global_trees[CTI_MAX];
224
225/* In a RECORD_TYPE, a sorted array of the fields of the type, not a
226 tree for size reasons. */
227struct sorted_fields_type GTY(())
228{
229 int len;
230 tree GTY((length ("%h.len"))) elts[1];
231};
232
226/* Mark which labels are explicitly declared.
227 These may be shadowed, and may be referenced from nested functions. */
228#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
229
230/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
231 warning if they undergo concatenation. */
232#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
233
234typedef enum c_language_kind
235{
233/* Mark which labels are explicitly declared.
234 These may be shadowed, and may be referenced from nested functions. */
235#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
236
237/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
238 warning if they undergo concatenation. */
239#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
240
241typedef enum c_language_kind
242{
236 clk_c = 0, /* A dialect of C: K&R C, ANSI/ISO C89, C2000, etc. */
237 clk_cplusplus /* ANSI/ISO C++ */
243 clk_c = 0, /* C90, C94 or C99 */
244 clk_objc = 1, /* clk_c with ObjC features. */
245 clk_cxx = 2, /* ANSI/ISO C++ */
246 clk_objcxx = 3 /* clk_cxx with ObjC features. */
238}
239c_language_kind;
240
247}
248c_language_kind;
249
250/* To test for a specific language use c_language, defined by each
251 front end. For "ObjC features" or "not C++" use the macros. */
252extern c_language_kind c_language;
253
254#define c_dialect_cxx() (c_language & clk_cxx)
255#define c_dialect_objc() (c_language & clk_objc)
256
241/* Information about a statement tree. */
242
243struct stmt_tree_s GTY(()) {
244 /* The last statement added to the tree. */
245 tree x_last_stmt;
246 /* The type of the last expression statement. (This information is
247 needed to implement the statement-expression extension.) */
248 tree x_last_expr_type;

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300 do { \
301 substmt = TREE_CHAIN (stmt); \
302 TREE_CHAIN (stmt) = NULL_TREE; \
303 last_tree = stmt; \
304 } while (0)
305
306/* Language-specific hooks. */
307
257/* Information about a statement tree. */
258
259struct stmt_tree_s GTY(()) {
260 /* The last statement added to the tree. */
261 tree x_last_stmt;
262 /* The type of the last expression statement. (This information is
263 needed to implement the statement-expression extension.) */
264 tree x_last_expr_type;

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316 do { \
317 substmt = TREE_CHAIN (stmt); \
318 TREE_CHAIN (stmt) = NULL_TREE; \
319 last_tree = stmt; \
320 } while (0)
321
322/* Language-specific hooks. */
323
308extern int (*lang_statement_code_p) PARAMS ((enum tree_code));
309extern void (*lang_expand_stmt) PARAMS ((tree));
310extern void (*lang_expand_decl_stmt) PARAMS ((tree));
311extern void (*lang_expand_function_end) PARAMS ((void));
312extern tree gettags PARAMS ((void));
324extern void (*lang_expand_stmt) (tree);
325extern void (*lang_expand_decl_stmt) (tree);
326extern void (*lang_expand_function_end) (void);
313
314/* Callback that determines if it's ok for a function to have no
315 noreturn attribute. */
327
328/* Callback that determines if it's ok for a function to have no
329 noreturn attribute. */
316extern int (*lang_missing_noreturn_ok_p) PARAMS ((tree));
330extern int (*lang_missing_noreturn_ok_p) (tree);
317
331
318extern int yyparse PARAMS ((void));
319extern void free_parser_stacks PARAMS ((void));
332extern int yyparse (void);
333extern stmt_tree current_stmt_tree (void);
334extern tree *current_scope_stmt_stack (void);
335extern void begin_stmt_tree (tree *);
336extern tree add_stmt (tree);
337extern void add_decl_stmt (tree);
338extern tree add_scope_stmt (int, int);
339extern void finish_stmt_tree (tree *);
320
340
321extern stmt_tree current_stmt_tree PARAMS ((void));
322extern tree *current_scope_stmt_stack PARAMS ((void));
323extern void begin_stmt_tree PARAMS ((tree *));
324extern tree add_stmt PARAMS ((tree));
325extern void add_decl_stmt PARAMS ((tree));
326extern tree add_scope_stmt PARAMS ((int, int));
327extern void finish_stmt_tree PARAMS ((tree *));
341extern tree walk_stmt_tree (tree *, walk_tree_fn, void *);
342extern void prep_stmt (tree);
343extern void expand_stmt (tree);
344extern tree c_begin_if_stmt (void);
345extern tree c_begin_while_stmt (void);
346extern void c_finish_while_stmt_cond (tree, tree);
328
347
329extern int statement_code_p PARAMS ((enum tree_code));
330extern tree walk_stmt_tree PARAMS ((tree *,
331 walk_tree_fn,
332 void *));
333extern void prep_stmt PARAMS ((tree));
334extern void expand_stmt PARAMS ((tree));
335extern void shadow_warning PARAMS ((const char *,
336 tree, tree));
337extern tree c_begin_if_stmt PARAMS ((void));
338extern tree c_begin_while_stmt PARAMS ((void));
339extern void c_finish_while_stmt_cond PARAMS ((tree, tree));
348extern int field_decl_cmp (const void *, const void *);
349extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
350 void *);
351
352/* Switches common to the C front ends. */
340
353
354/* Nonzero if prepreprocessing only. */
341
355
342/* Extra information associated with a DECL. Other C dialects extend
343 this structure in various ways. The C front-end only uses this
344 structure for FUNCTION_DECLs; all other DECLs have a NULL
345 DECL_LANG_SPECIFIC field. */
356extern int flag_preprocess_only;
346
357
347struct c_lang_decl GTY(()) {
348 unsigned declared_inline : 1;
349};
358/* Zero means that faster, ...NonNil variants of objc_msgSend...
359 calls will be used in ObjC; passing nil receivers to such calls
360 will most likely result in crashes. */
361extern int flag_nil_receivers;
350
362
351/* In a FUNCTION_DECL for which DECL_BUILT_IN does not hold, this is
352 the approximate number of statements in this function. There is
353 no need for this number to be exact; it is only used in various
354 heuristics regarding optimization. */
355#define DECL_NUM_STMTS(NODE) \
356 (FUNCTION_DECL_CHECK (NODE)->decl.u1.i)
363/* Nonzero means that we will allow new ObjC exception syntax (@throw,
364 @try, etc.) in source code. */
365extern int flag_objc_exceptions;
357
366
358/* The variant of the C language being processed. Each C language
359 front-end defines this variable. */
367/* Nonzero means that code generation will be altered to support
368 "zero-link" execution. This currently affects ObjC only, but may
369 affect other languages in the future. */
370extern int flag_zero_link;
360
371
361extern c_language_kind c_language;
372/* Nonzero means emit an '__OBJC, __image_info' for the current translation
373 unit. It will inform the ObjC runtime that class definition(s) herein
374 contained are to replace one(s) previously loaded. */
375extern int flag_replace_objc_classes;
362
376
363/* Switches common to the C front ends. */
377/* Nonzero means don't output line number information. */
364
378
365/* Nonzero if prepreprocessing only. */
366extern int flag_preprocess_only;
379extern char flag_no_line_commands;
367
380
381/* Nonzero causes -E output not to be done, but directives such as
382 #define that have side effects are still obeyed. */
383
384extern char flag_no_output;
385
386/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or
387 'N' of the command line switch. */
388
389extern char flag_dump_macros;
390
391/* Nonzero means pass #include lines through to the output. */
392
393extern char flag_dump_includes;
394
395/* The file name to which we should write a precompiled header, or
396 NULL if no header will be written in this compile. */
397
398extern const char *pch_file;
399
368/* Nonzero if an ISO standard was selected. It rejects macros in the
369 user's namespace. */
400/* Nonzero if an ISO standard was selected. It rejects macros in the
401 user's namespace. */
402
370extern int flag_iso;
371
403extern int flag_iso;
404
372/* Nonzero whenever Objective-C functionality is being used. */
373extern int flag_objc;
374
375/* Nonzero if -undef was given. It suppresses target built-in macros
376 and assertions. */
405/* Nonzero if -undef was given. It suppresses target built-in macros
406 and assertions. */
407
377extern int flag_undef;
378
379/* Nonzero means don't recognize the non-ANSI builtin functions. */
380
381extern int flag_no_builtin;
382
383/* Nonzero means don't recognize the non-ANSI builtin functions.
384 -ansi sets this. */

--- 15 unchanged lines hidden (view full) ---

400
401extern int flag_no_asm;
402
403/* Nonzero means give string constants the type `const char *', as mandated
404 by the standard. */
405
406extern int flag_const_strings;
407
408extern int flag_undef;
409
410/* Nonzero means don't recognize the non-ANSI builtin functions. */
411
412extern int flag_no_builtin;
413
414/* Nonzero means don't recognize the non-ANSI builtin functions.
415 -ansi sets this. */

--- 15 unchanged lines hidden (view full) ---

431
432extern int flag_no_asm;
433
434/* Nonzero means give string constants the type `const char *', as mandated
435 by the standard. */
436
437extern int flag_const_strings;
438
408/* Nonzero means `$' can be in an identifier. */
409
410extern int dollars_in_ident;
411
412/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
413
414extern int flag_signed_bitfields;
415extern int explicit_flag_signed_bitfields;
416
417/* Nonzero means warn about pointer casts that can drop a type qualifier
418 from the pointer target type. */
419

--- 105 unchanged lines hidden (view full) ---

525/* Nonzero means use the ISO C99 dialect of C. */
526
527extern int flag_isoc99;
528
529/* Nonzero means allow the BSD kernel printf enhancments. */
530
531extern int flag_bsd_format;
532
439/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
440
441extern int flag_signed_bitfields;
442extern int explicit_flag_signed_bitfields;
443
444/* Nonzero means warn about pointer casts that can drop a type qualifier
445 from the pointer target type. */
446

--- 105 unchanged lines hidden (view full) ---

552/* Nonzero means use the ISO C99 dialect of C. */
553
554extern int flag_isoc99;
555
556/* Nonzero means allow the BSD kernel printf enhancments. */
557
558extern int flag_bsd_format;
559
533/* Nonzero means that we have builtin functions, and main is an int */
560/* Nonzero means that we have builtin functions, and main is an int. */
534
535extern int flag_hosted;
536
561
562extern int flag_hosted;
563
537/* Nonzero means add default format_arg attributes for functions not
538 in ISO C. */
539
540extern int flag_noniso_default_format_attributes;
541
542/* Nonzero means warn when casting a function call to a type that does
543 not match the return type (e.g. (float)sqrt() or (anything*)malloc()
544 when there is no previous declaration of sqrt or malloc. */
545
546extern int warn_bad_function_cast;
547
548/* Warn about traditional constructs whose meanings changed in ANSI C. */
549
550extern int warn_traditional;
551
564/* Nonzero means warn when casting a function call to a type that does
565 not match the return type (e.g. (float)sqrt() or (anything*)malloc()
566 when there is no previous declaration of sqrt or malloc. */
567
568extern int warn_bad_function_cast;
569
570/* Warn about traditional constructs whose meanings changed in ANSI C. */
571
572extern int warn_traditional;
573
574/* Nonzero means warn for a declaration found after a statement. */
575
576extern int warn_declaration_after_statement;
577
552/* Nonzero means warn for non-prototype function decls
553 or non-prototyped defs without previous prototype. */
554
555extern int warn_strict_prototypes;
556
557/* Nonzero means warn for any global function def
558 without separate previous decl. */
559

--- 10 unchanged lines hidden (view full) ---

570/* Warn if main is suspicious. */
571
572extern int warn_main;
573
574/* Nonzero means warn about possible violations of sequence point rules. */
575
576extern int warn_sequence_point;
577
578/* Nonzero means warn for non-prototype function decls
579 or non-prototyped defs without previous prototype. */
580
581extern int warn_strict_prototypes;
582
583/* Nonzero means warn for any global function def
584 without separate previous decl. */
585

--- 10 unchanged lines hidden (view full) ---

596/* Warn if main is suspicious. */
597
598extern int warn_main;
599
600/* Nonzero means warn about possible violations of sequence point rules. */
601
602extern int warn_sequence_point;
603
604/* Nonzero means warn about uninitialized variable when it is initialized with itself.
605 For example: int i = i;, GCC will not warn about this when warn_init_self is nonzero. */
606
607extern int warn_init_self;
608
609
578/* Nonzero means to warn about compile-time division by zero. */
579extern int warn_div_by_zero;
580
581/* Nonzero means warn about use of implicit int. */
582
583extern int warn_implicit_int;
584
585/* Warn about NULL being passed to argument slots marked as requiring
586 non-NULL. */
587
588extern int warn_nonnull;
589
610/* Nonzero means to warn about compile-time division by zero. */
611extern int warn_div_by_zero;
612
613/* Nonzero means warn about use of implicit int. */
614
615extern int warn_implicit_int;
616
617/* Warn about NULL being passed to argument slots marked as requiring
618 non-NULL. */
619
620extern int warn_nonnull;
621
622/* Warn about old-style parameter declaration. */
590
623
624extern int warn_old_style_definition;
625
626
591/* ObjC language option variables. */
592
593
594/* Open and close the file for outputting class declarations, if
595 requested (ObjC). */
596
597extern int flag_gen_declaration;
598

--- 38 unchanged lines hidden (view full) ---

637
638extern int flag_no_gnu_keywords;
639
640/* Nonzero means do emit exported implementations of functions even if
641 they can be inlined. */
642
643extern int flag_implement_inlines;
644
627/* ObjC language option variables. */
628
629
630/* Open and close the file for outputting class declarations, if
631 requested (ObjC). */
632
633extern int flag_gen_declaration;
634

--- 38 unchanged lines hidden (view full) ---

673
674extern int flag_no_gnu_keywords;
675
676/* Nonzero means do emit exported implementations of functions even if
677 they can be inlined. */
678
679extern int flag_implement_inlines;
680
645/* Nonzero means do emit exported implementations of templates, instead of
646 multiple static copies in each file that needs a definition. */
647
648extern int flag_external_templates;
649
650/* Nonzero means that the decision to emit or not emit the implementation of a
651 template depends on where the template is instantiated, rather than where
652 it is defined. */
653
654extern int flag_alt_external_templates;
655
656/* Nonzero means that implicit instantiations will be emitted if needed. */
657
658extern int flag_implicit_templates;
659
660/* Nonzero means that implicit instantiations of inline templates will be
661 emitted if needed, even if instantiations of non-inline templates
662 aren't. */
663

--- 49 unchanged lines hidden (view full) ---

713extern int flag_new_for_scope;
714
715/* Nonzero if we want to emit defined symbols with common-like linkage as
716 weak symbols where possible, in order to conform to C++ semantics.
717 Otherwise, emit them as local symbols. */
718
719extern int flag_weak;
720
681/* Nonzero means that implicit instantiations will be emitted if needed. */
682
683extern int flag_implicit_templates;
684
685/* Nonzero means that implicit instantiations of inline templates will be
686 emitted if needed, even if instantiations of non-inline templates
687 aren't. */
688

--- 49 unchanged lines hidden (view full) ---

738extern int flag_new_for_scope;
739
740/* Nonzero if we want to emit defined symbols with common-like linkage as
741 weak symbols where possible, in order to conform to C++ semantics.
742 Otherwise, emit them as local symbols. */
743
744extern int flag_weak;
745
746/* 0 means we want the preprocessor to not emit line directives for
747 the current working directory. 1 means we want it to do it. -1
748 means we should decide depending on whether debugging information
749 is being emitted or not. */
750
751extern int flag_working_directory;
752
721/* Nonzero to use __cxa_atexit, rather than atexit, to register
722 destructors for local statics and global objects. */
723
724extern int flag_use_cxa_atexit;
725
753/* Nonzero to use __cxa_atexit, rather than atexit, to register
754 destructors for local statics and global objects. */
755
756extern int flag_use_cxa_atexit;
757
726/* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */
727
728extern int flag_vtable_gc;
729
730/* Nonzero means make the default pedwarns warnings instead of errors.
731 The value of this flag is ignored if -pedantic is specified. */
732
733extern int flag_permissive;
734
735/* Nonzero means to implement standard semantics for exception
736 specifications, calling unexpected if an exception is thrown that
737 doesn't match the specification. Zero means to treat them as
738 assertions and optimize accordingly, but not check them. */
739
740extern int flag_enforce_eh_specs;
741
758/* Nonzero means make the default pedwarns warnings instead of errors.
759 The value of this flag is ignored if -pedantic is specified. */
760
761extern int flag_permissive;
762
763/* Nonzero means to implement standard semantics for exception
764 specifications, calling unexpected if an exception is thrown that
765 doesn't match the specification. Zero means to treat them as
766 assertions and optimize accordingly, but not check them. */
767
768extern int flag_enforce_eh_specs;
769
742/* The version of the C++ ABI in use. The following values are
743 allowed:
744
745 0: The version of the ABI believed most conformant with the
746 C++ ABI specification. This ABI may change as bugs are
747 discovered and fixed. Therefore, 0 will not necessarily
748 indicate the same ABI in different versions of G++.
749
750 1: The version of the ABI first used in G++ 3.2.
751
752 Additional positive integers will be assigned as new versions of
753 the ABI become the default version of the ABI. */
754
755extern int flag_abi_version;
756
757/* Nonzero means warn about things that will change when compiling
758 with an ABI-compliant compiler. */
759
760extern int warn_abi;
761
770/* Nonzero means warn about things that will change when compiling
771 with an ABI-compliant compiler. */
772
773extern int warn_abi;
774
775/* Nonzero means warn about invalid uses of offsetof. */
776
777extern int warn_invalid_offsetof;
778
762/* Nonzero means warn about implicit declarations. */
763
764extern int warn_implicit;
765
766/* Nonzero means warn when all ctors or dtors are private, and the class
767 has no friends. */
768
769extern int warn_ctor_dtor_privacy;

--- 79 unchanged lines hidden (view full) ---

849extern const struct attribute_spec c_common_attribute_table[];
850extern const struct attribute_spec c_common_format_attribute_table[];
851
852/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
853 ID is the identifier to use, NAME is the string.
854 TYPE_DEP indicates whether it depends on type of the function or not
855 (i.e. __PRETTY_FUNCTION__). */
856
779/* Nonzero means warn about implicit declarations. */
780
781extern int warn_implicit;
782
783/* Nonzero means warn when all ctors or dtors are private, and the class
784 has no friends. */
785
786extern int warn_ctor_dtor_privacy;

--- 79 unchanged lines hidden (view full) ---

866extern const struct attribute_spec c_common_attribute_table[];
867extern const struct attribute_spec c_common_format_attribute_table[];
868
869/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
870 ID is the identifier to use, NAME is the string.
871 TYPE_DEP indicates whether it depends on type of the function or not
872 (i.e. __PRETTY_FUNCTION__). */
873
857extern tree (*make_fname_decl) PARAMS ((tree, int));
874extern tree (*make_fname_decl) (tree, int);
858
875
859extern tree identifier_global_value PARAMS ((tree));
860extern void record_builtin_type PARAMS ((enum rid,
861 const char *, tree));
862extern tree build_void_list_node PARAMS ((void));
863extern void start_fname_decls PARAMS ((void));
864extern void finish_fname_decls PARAMS ((void));
865extern const char *fname_as_string PARAMS ((int));
866extern tree fname_decl PARAMS ((unsigned, tree));
867extern const char *fname_string PARAMS ((unsigned));
876extern tree identifier_global_value (tree);
877extern void record_builtin_type (enum rid, const char *, tree);
878extern tree build_void_list_node (void);
879extern void start_fname_decls (void);
880extern void finish_fname_decls (void);
881extern const char *fname_as_string (int);
882extern tree fname_decl (unsigned, tree);
868
883
869extern void check_function_arguments PARAMS ((tree, tree));
870extern void check_function_arguments_recurse PARAMS ((void (*) (void *,
871 tree,
872 unsigned HOST_WIDE_INT),
873 void *, tree,
874 unsigned HOST_WIDE_INT));
875extern void check_function_format PARAMS ((int *, tree, tree));
876extern void set_Wformat PARAMS ((int));
877extern tree handle_format_attribute PARAMS ((tree *, tree, tree,
878 int, bool *));
879extern tree handle_format_arg_attribute PARAMS ((tree *, tree, tree,
880 int, bool *));
881extern void c_common_insert_default_attributes PARAMS ((tree));
882extern int c_common_decode_option PARAMS ((int, char **));
883extern tree c_common_type_for_mode PARAMS ((enum machine_mode,
884 int));
885extern tree c_common_type_for_size PARAMS ((unsigned int, int));
886extern tree c_common_unsigned_type PARAMS ((tree));
887extern tree c_common_signed_type PARAMS ((tree));
888extern tree c_common_signed_or_unsigned_type PARAMS ((int, tree));
889extern tree c_common_truthvalue_conversion PARAMS ((tree));
890extern void c_apply_type_quals_to_decl PARAMS ((int, tree));
891extern tree c_sizeof_or_alignof_type PARAMS ((tree, enum tree_code, int));
892extern tree c_alignof_expr PARAMS ((tree));
884extern void check_function_arguments (tree, tree);
885extern void check_function_arguments_recurse (void (*)
886 (void *, tree,
887 unsigned HOST_WIDE_INT),
888 void *, tree,
889 unsigned HOST_WIDE_INT);
890extern void check_function_format (int *, tree, tree);
891extern void set_Wformat (int);
892extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
893extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
894extern int c_common_handle_option (size_t code, const char *arg, int value);
895extern bool c_common_missing_argument (const char *opt, size_t code);
896extern tree c_common_type_for_mode (enum machine_mode, int);
897extern tree c_common_type_for_size (unsigned int, int);
898extern tree c_common_unsigned_type (tree);
899extern tree c_common_signed_type (tree);
900extern tree c_common_signed_or_unsigned_type (int, tree);
901extern tree c_common_truthvalue_conversion (tree);
902extern void c_apply_type_quals_to_decl (int, tree);
903extern tree c_sizeof_or_alignof_type (tree, enum tree_code, int);
904extern tree c_alignof_expr (tree);
893/* Print an error message for invalid operands to arith operation CODE.
894 NOP_EXPR is used as a special case (see truthvalue_conversion). */
905/* Print an error message for invalid operands to arith operation CODE.
906 NOP_EXPR is used as a special case (see truthvalue_conversion). */
895extern void binary_op_error PARAMS ((enum tree_code));
907extern void binary_op_error (enum tree_code);
896#define my_friendly_assert(EXP, N) (void) \
897 (((EXP) == 0) ? (fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0) : 0)
898
908#define my_friendly_assert(EXP, N) (void) \
909 (((EXP) == 0) ? (fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0) : 0)
910
899extern tree c_expand_expr_stmt PARAMS ((tree));
900extern void c_expand_start_cond PARAMS ((tree, int, tree));
901extern void c_finish_then PARAMS ((void));
902extern void c_expand_start_else PARAMS ((void));
903extern void c_finish_else PARAMS ((void));
904extern void c_expand_end_cond PARAMS ((void));
911extern tree c_expand_expr_stmt (tree);
912extern void c_expand_start_cond (tree, int, tree);
913extern void c_finish_then (void);
914extern void c_expand_start_else (void);
915extern void c_finish_else (void);
916extern void c_expand_end_cond (void);
905/* Validate the expression after `case' and apply default promotions. */
917/* Validate the expression after `case' and apply default promotions. */
906extern tree check_case_value PARAMS ((tree));
907extern tree fix_string_type PARAMS ((tree));
918extern tree check_case_value (tree);
919extern tree fix_string_type (tree);
908struct varray_head_tag;
920struct varray_head_tag;
909extern tree combine_strings PARAMS ((struct varray_head_tag *));
910extern void constant_expression_warning PARAMS ((tree));
911extern tree convert_and_check PARAMS ((tree, tree));
912extern void overflow_warning PARAMS ((tree));
913extern void unsigned_conversion_warning PARAMS ((tree, tree));
921extern void constant_expression_warning (tree);
922extern tree convert_and_check (tree, tree);
923extern void overflow_warning (tree);
924extern void unsigned_conversion_warning (tree, tree);
914
915/* Read the rest of the current #-directive line. */
925
926/* Read the rest of the current #-directive line. */
916extern char *get_directive_line PARAMS ((void));
927extern char *get_directive_line (void);
917#define GET_DIRECTIVE_LINE() get_directive_line ()
918#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
919#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
920
921/* Subroutine of build_binary_op, used for comparison operations.
922 See if the operands have both been converted from subword integer types
923 and, if so, perhaps change them both back to their original type. */
928#define GET_DIRECTIVE_LINE() get_directive_line ()
929#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
930#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
931
932/* Subroutine of build_binary_op, used for comparison operations.
933 See if the operands have both been converted from subword integer types
934 and, if so, perhaps change them both back to their original type. */
924extern tree shorten_compare PARAMS ((tree *, tree *, tree *, enum tree_code *));
935extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *);
925
936
926extern tree pointer_int_sum PARAMS ((enum tree_code, tree, tree));
927extern unsigned int min_precision PARAMS ((tree, int));
937extern tree pointer_int_sum (enum tree_code, tree, tree);
938extern unsigned int min_precision (tree, int);
928
929/* Add qualifiers to a type, in the fashion for C. */
939
940/* Add qualifiers to a type, in the fashion for C. */
930extern tree c_build_qualified_type PARAMS ((tree, int));
941extern tree c_build_qualified_type (tree, int);
931
932/* Build tree nodes and builtin functions common to both C and C++ language
933 frontends. */
942
943/* Build tree nodes and builtin functions common to both C and C++ language
944 frontends. */
934extern void c_common_nodes_and_builtins PARAMS ((void));
945extern void c_common_nodes_and_builtins (void);
935
946
936extern void disable_builtin_function PARAMS ((const char *));
947extern void disable_builtin_function (const char *);
937
948
938extern tree build_va_arg PARAMS ((tree, tree));
949extern tree build_va_arg (tree, tree);
939
950
940extern void c_common_init_options PARAMS ((enum c_language_kind));
941extern bool c_common_post_options PARAMS ((void));
942extern const char *c_common_init PARAMS ((const char *));
943extern void c_common_finish PARAMS ((void));
944extern void c_common_parse_file PARAMS ((int));
945extern HOST_WIDE_INT c_common_get_alias_set PARAMS ((tree));
946extern bool c_promoting_integer_type_p PARAMS ((tree));
947extern int self_promoting_args_p PARAMS ((tree));
948extern tree strip_array_types PARAMS ((tree));
951extern unsigned int c_common_init_options (unsigned int, const char **);
952extern bool c_common_post_options (const char **);
953extern bool c_common_init (void);
954extern void c_common_finish (void);
955extern void c_common_parse_file (int);
956extern HOST_WIDE_INT c_common_get_alias_set (tree);
957extern void c_register_builtin_type (tree, const char*);
958extern bool c_promoting_integer_type_p (tree);
959extern int self_promoting_args_p (tree);
960extern tree strip_array_types (tree);
961extern tree strip_pointer_operator (tree);
949
962
963/* This function resets the parsers' state in preparation for parsing
964 a new file. */
965extern void c_reset_state (void);
966/* This is the basic parsing function. */
967extern void c_parse_file (void);
968/* This is misnamed, it actually performs end-of-compilation processing. */
969extern void finish_file (void);
970
950/* These macros provide convenient access to the various _STMT nodes. */
951
952/* Nonzero if this statement should be considered a full-expression,
953 i.e., if temporaries created during this statement should have
954 their destructors run at the end of this statement. (In C, this
955 will always be false, since there are no destructors.) */
956#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
957

--- 42 unchanged lines hidden (view full) ---

1000 of a case label, respectively. */
1001#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
1002#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
1003#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2)
1004
1005/* GOTO_STMT accessor. This gives access to the label associated with
1006 a goto statement. */
1007#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
971/* These macros provide convenient access to the various _STMT nodes. */
972
973/* Nonzero if this statement should be considered a full-expression,
974 i.e., if temporaries created during this statement should have
975 their destructors run at the end of this statement. (In C, this
976 will always be false, since there are no destructors.) */
977#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
978

--- 42 unchanged lines hidden (view full) ---

1021 of a case label, respectively. */
1022#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
1023#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
1024#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2)
1025
1026/* GOTO_STMT accessor. This gives access to the label associated with
1027 a goto statement. */
1028#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
1008/* True for goto created artifically by the compiler. */
1029/* True for goto created artificially by the compiler. */
1009#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
1010
1011/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
1012 statements associated with a compound statement. The result is the
1013 first statement in the list. Succeeding nodes can be accessed by
1014 calling TREE_CHAIN on a node in the list. */
1015#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
1016

--- 13 unchanged lines hidden (view full) ---

1030
1031/* STMT_EXPR accessor. */
1032#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
1033
1034/* Nonzero if this statement-expression does not have an associated scope. */
1035#define STMT_EXPR_NO_SCOPE(NODE) \
1036 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
1037
1030#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
1031
1032/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
1033 statements associated with a compound statement. The result is the
1034 first statement in the list. Succeeding nodes can be accessed by
1035 calling TREE_CHAIN on a node in the list. */
1036#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
1037

--- 13 unchanged lines hidden (view full) ---

1051
1052/* STMT_EXPR accessor. */
1053#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
1054
1055/* Nonzero if this statement-expression does not have an associated scope. */
1056#define STMT_EXPR_NO_SCOPE(NODE) \
1057 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
1058
1059/* Nonzero if this statement-expression should cause warning if its result
1060 is not used. */
1061#define STMT_EXPR_WARN_UNUSED_RESULT(NODE) \
1062 TREE_LANG_FLAG_3 (STMT_EXPR_CHECK (NODE))
1063
1038/* LABEL_STMT accessor. This gives access to the label associated with
1039 the given label statement. */
1040#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
1041
1042/* COMPOUND_LITERAL_EXPR accessors. */
1043#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
1044 TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
1045#define COMPOUND_LITERAL_EXPR_DECL(NODE) \

--- 77 unchanged lines hidden (view full) ---

1123enum c_tree_code {
1124 C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
1125#include "c-common.def"
1126 LAST_C_TREE_CODE
1127};
1128
1129#undef DEFTREECODE
1130
1064/* LABEL_STMT accessor. This gives access to the label associated with
1065 the given label statement. */
1066#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
1067
1068/* COMPOUND_LITERAL_EXPR accessors. */
1069#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
1070 TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
1071#define COMPOUND_LITERAL_EXPR_DECL(NODE) \

--- 77 unchanged lines hidden (view full) ---

1149enum c_tree_code {
1150 C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
1151#include "c-common.def"
1152 LAST_C_TREE_CODE
1153};
1154
1155#undef DEFTREECODE
1156
1131extern void genrtl_do_pushlevel PARAMS ((void));
1132extern void genrtl_goto_stmt PARAMS ((tree));
1133extern void genrtl_expr_stmt PARAMS ((tree));
1134extern void genrtl_expr_stmt_value PARAMS ((tree, int, int));
1135extern void genrtl_decl_stmt PARAMS ((tree));
1136extern void genrtl_if_stmt PARAMS ((tree));
1137extern void genrtl_while_stmt PARAMS ((tree));
1138extern void genrtl_do_stmt PARAMS ((tree));
1139extern void genrtl_return_stmt PARAMS ((tree));
1140extern void genrtl_for_stmt PARAMS ((tree));
1141extern void genrtl_break_stmt PARAMS ((void));
1142extern void genrtl_continue_stmt PARAMS ((void));
1143extern void genrtl_scope_stmt PARAMS ((tree));
1144extern void genrtl_switch_stmt PARAMS ((tree));
1145extern void genrtl_case_label PARAMS ((tree));
1146extern void genrtl_compound_stmt PARAMS ((tree));
1147extern void genrtl_asm_stmt PARAMS ((tree, tree,
1148 tree, tree,
1149 tree, int));
1150extern void genrtl_decl_cleanup PARAMS ((tree));
1151extern int stmts_are_full_exprs_p PARAMS ((void));
1152extern int anon_aggr_type_p PARAMS ((tree));
1157#define c_common_stmt_codes \
1158 CLEANUP_STMT, EXPR_STMT, COMPOUND_STMT, \
1159 DECL_STMT, IF_STMT, FOR_STMT, \
1160 WHILE_STMT, DO_STMT, RETURN_STMT, \
1161 BREAK_STMT, CONTINUE_STMT, SCOPE_STMT, \
1162 SWITCH_STMT, GOTO_STMT, LABEL_STMT, \
1163 ASM_STMT, FILE_STMT, CASE_LABEL
1153
1164
1165/* TRUE if a code represents a statement. The front end init
1166 langhook should take care of initialization of this array. */
1167extern bool statement_code_p[MAX_TREE_CODES];
1168
1169#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1170
1171#define INIT_STATEMENT_CODES(STMT_CODES) \
1172 do { \
1173 unsigned int i; \
1174 memset (&statement_code_p, 0, sizeof (statement_code_p)); \
1175 for (i = 0; i < ARRAY_SIZE (STMT_CODES); i++) \
1176 statement_code_p[STMT_CODES[i]] = true; \
1177 } while (0)
1178
1179extern void genrtl_do_pushlevel (void);
1180extern void genrtl_goto_stmt (tree);
1181extern void genrtl_expr_stmt (tree);
1182extern void genrtl_expr_stmt_value (tree, int, int);
1183extern void genrtl_decl_stmt (tree);
1184extern void genrtl_if_stmt (tree);
1185extern void genrtl_while_stmt (tree);
1186extern void genrtl_do_stmt (tree);
1187extern void genrtl_return_stmt (tree);
1188extern void genrtl_for_stmt (tree);
1189extern void genrtl_break_stmt (void);
1190extern void genrtl_continue_stmt (void);
1191extern void genrtl_scope_stmt (tree);
1192extern void genrtl_switch_stmt (tree);
1193extern void genrtl_case_label (tree);
1194extern void genrtl_compound_stmt (tree);
1195extern void genrtl_asm_stmt (tree, tree, tree, tree, tree, int);
1196extern void genrtl_cleanup_stmt (tree);
1197extern int stmts_are_full_exprs_p (void);
1198extern int anon_aggr_type_p (tree);
1199
1154/* For a VAR_DECL that is an anonymous union, these are the various
1155 sub-variables that make up the anonymous union. */
1156#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE))
1157
1158/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
1159#define DECL_C_BIT_FIELD(NODE) \
1160 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
1161#define SET_DECL_C_BIT_FIELD(NODE) \
1162 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1)
1163#define CLEAR_DECL_C_BIT_FIELD(NODE) \
1164 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
1165
1166/* In a VAR_DECL, nonzero if the decl is a register variable with
1167 an explicit asm specification. */
1168#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
1169
1200/* For a VAR_DECL that is an anonymous union, these are the various
1201 sub-variables that make up the anonymous union. */
1202#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE))
1203
1204/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
1205#define DECL_C_BIT_FIELD(NODE) \
1206 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
1207#define SET_DECL_C_BIT_FIELD(NODE) \
1208 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1)
1209#define CLEAR_DECL_C_BIT_FIELD(NODE) \
1210 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
1211
1212/* In a VAR_DECL, nonzero if the decl is a register variable with
1213 an explicit asm specification. */
1214#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
1215
1170extern void emit_local_var PARAMS ((tree));
1171extern void make_rtl_for_local_static PARAMS ((tree));
1172extern tree expand_cond PARAMS ((tree));
1173extern tree c_expand_return PARAMS ((tree));
1174extern tree do_case PARAMS ((tree, tree));
1175extern tree build_stmt PARAMS ((enum tree_code, ...));
1176extern tree build_case_label PARAMS ((tree, tree, tree));
1177extern tree build_continue_stmt PARAMS ((void));
1178extern tree build_break_stmt PARAMS ((void));
1179extern tree build_return_stmt PARAMS ((tree));
1216extern void emit_local_var (tree);
1217extern void make_rtl_for_local_static (tree);
1218extern tree expand_cond (tree);
1219extern tree c_expand_return (tree);
1220extern tree do_case (tree, tree);
1221extern tree build_stmt (enum tree_code, ...);
1222extern tree build_case_label (tree, tree, tree);
1223extern tree build_continue_stmt (void);
1224extern tree build_break_stmt (void);
1225extern tree build_return_stmt (tree);
1180
1181#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
1182
1183/* Used by the C++ frontend to mark the block around the member
1184 initializers and cleanups. */
1185#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
1186
1226
1227#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
1228
1229/* Used by the C++ frontend to mark the block around the member
1230 initializers and cleanups. */
1231#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
1232
1187extern void c_expand_asm_operands PARAMS ((tree, tree, tree, tree, int, const char *, int));
1233extern void c_expand_asm_operands (tree, tree, tree, tree, int, location_t);
1188
1189/* These functions must be defined by each front-end which implements
1190 a variant of the C language. They are used in c-common.c. */
1191
1234
1235/* These functions must be defined by each front-end which implements
1236 a variant of the C language. They are used in c-common.c. */
1237
1192extern tree build_unary_op PARAMS ((enum tree_code,
1193 tree, int));
1194extern tree build_binary_op PARAMS ((enum tree_code,
1195 tree, tree, int));
1196extern int lvalue_p PARAMS ((tree));
1197extern tree default_conversion PARAMS ((tree));
1238extern tree build_unary_op (enum tree_code, tree, int);
1239extern tree build_binary_op (enum tree_code, tree, tree, int);
1240extern int lvalue_p (tree);
1241extern tree default_conversion (tree);
1198
1199/* Given two integer or real types, return the type for their sum.
1200 Given two compatible ANSI C types, returns the merged type. */
1201
1242
1243/* Given two integer or real types, return the type for their sum.
1244 Given two compatible ANSI C types, returns the merged type. */
1245
1202extern tree common_type PARAMS ((tree, tree));
1246extern tree common_type (tree, tree);
1203
1247
1204extern tree expand_tree_builtin PARAMS ((tree, tree, tree));
1248extern tree expand_tree_builtin (tree, tree, tree);
1205
1249
1206extern tree decl_constant_value PARAMS ((tree));
1250extern tree decl_constant_value (tree);
1207
1208/* Handle increment and decrement of boolean types. */
1251
1252/* Handle increment and decrement of boolean types. */
1209extern tree boolean_increment PARAMS ((enum tree_code,
1210 tree));
1253extern tree boolean_increment (enum tree_code, tree);
1211
1212/* Hook currently used only by the C++ front end to reset internal state
1213 after entering or leaving a header file. */
1254
1255/* Hook currently used only by the C++ front end to reset internal state
1256 after entering or leaving a header file. */
1214extern void extract_interface_info PARAMS ((void));
1257extern void extract_interface_info (void);
1215
1258
1216extern int case_compare PARAMS ((splay_tree_key,
1217 splay_tree_key));
1259extern int case_compare (splay_tree_key, splay_tree_key);
1218
1260
1219extern tree c_add_case_label PARAMS ((splay_tree,
1220 tree, tree,
1221 tree));
1261extern tree c_add_case_label (splay_tree, tree, tree, tree);
1222
1262
1223extern tree build_function_call PARAMS ((tree, tree));
1263extern tree build_function_call (tree, tree);
1224
1264
1225extern tree finish_label_address_expr PARAMS ((tree));
1265extern tree finish_label_address_expr (tree);
1226
1227/* Same function prototype, but the C and C++ front ends have
1228 different implementations. Used in c-common.c. */
1266
1267/* Same function prototype, but the C and C++ front ends have
1268 different implementations. Used in c-common.c. */
1229extern tree lookup_label PARAMS ((tree));
1269extern tree lookup_label (tree);
1230
1270
1231extern rtx c_expand_expr PARAMS ((tree, rtx,
1232 enum machine_mode,
1233 int));
1271extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
1234
1272
1235extern int c_safe_from_p PARAMS ((rtx, tree));
1273extern int c_safe_from_p (rtx, tree);
1236
1274
1237extern int c_staticp PARAMS ((tree));
1275extern int c_staticp (tree);
1238
1276
1239extern int c_common_unsafe_for_reeval PARAMS ((tree));
1277extern int c_common_unsafe_for_reeval (tree);
1240
1278
1241extern const char *init_c_lex PARAMS ((const char *));
1279extern void init_c_lex (void);
1242
1280
1243extern void cb_register_builtins PARAMS ((cpp_reader *));
1281extern void c_cpp_builtins (cpp_reader *);
1244
1282
1283/* Positive if an implicit `extern "C"' scope has just been entered;
1284 negative if such a scope has just been exited. */
1285extern int pending_lang_change;
1286
1245/* Information recorded about each file examined during compilation. */
1246
1247struct c_fileinfo
1248{
1249 int time; /* Time spent in the file. */
1250 short interface_only; /* Flags - used only by C++ */
1251 short interface_unknown;
1252};
1253
1287/* Information recorded about each file examined during compilation. */
1288
1289struct c_fileinfo
1290{
1291 int time; /* Time spent in the file. */
1292 short interface_only; /* Flags - used only by C++ */
1293 short interface_unknown;
1294};
1295
1254struct c_fileinfo *get_fileinfo PARAMS ((const char *));
1255extern void dump_time_statistics PARAMS ((void));
1296struct c_fileinfo *get_fileinfo (const char *);
1297extern void dump_time_statistics (void);
1256
1298
1257extern int c_dump_tree PARAMS ((void *, tree));
1299extern bool c_dump_tree (void *, tree);
1258
1300
1301extern void pch_init (void);
1302extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd);
1303extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd,
1304 const char *orig);
1305extern void c_common_write_pch (void);
1306extern void c_common_no_more_pch (void);
1307extern void builtin_define_with_value (const char *, const char *, int);
1308extern void c_stddef_cpp_builtins (void);
1309extern void fe_file_change (const struct line_map *);
1310extern int c_estimate_num_insns (tree decl);
1311extern bool c_decl_uninit (tree t);
1312extern void c_parse_error (const char *, enum cpp_ttype, tree);
1313
1314/* The following have been moved here from c-tree.h, since they're needed
1315 in the ObjC++ world, too. What is more, stub-objc.c could use a few
1316 prototypes. */
1317extern tree lookup_interface (tree);
1318extern tree is_class_name (tree);
1319extern tree objc_is_object_ptr (tree);
1320extern void objc_check_decl (tree);
1321extern int objc_comptypes (tree, tree, int);
1322extern tree objc_message_selector (void);
1323extern tree lookup_objc_ivar (tree);
1324extern void *get_current_scope (void);
1325extern void objc_mark_locals_volatile (void *);
1326
1327/* In c-ppoutput.c */
1328extern void init_pp_output (FILE *);
1329extern void preprocess_file (cpp_reader *);
1330extern void pp_file_change (const struct line_map *);
1331extern void pp_dir_change (cpp_reader *, const char *);
1332
1259#endif /* ! GCC_C_COMMON_H */
1333#endif /* ! GCC_C_COMMON_H */